1 // SPDX-License-Identifier: GPL-2.0-or-later
3  * wm8350-core.c  --  Device access for Wolfson WM8350
15 #include <linux/mfd/wm8350/gpio.h>
18 static int gpio_set_dir(struct wm8350 *wm8350, int gpio, int dir)  in gpio_set_dir()  argument
23 	if (dir == WM8350_GPIO_DIR_OUT)  in gpio_set_dir()
26 					1 << gpio);  in gpio_set_dir()
30 				      1 << gpio);  in gpio_set_dir()
35 static int wm8350_gpio_set_debounce(struct wm8350 *wm8350, int gpio, int db)  in wm8350_gpio_set_debounce()  argument
39 				       1 << gpio);  in wm8350_gpio_set_debounce()
42 					 WM8350_GPIO_DEBOUNCE, 1 << gpio);  in wm8350_gpio_set_debounce()
45 static int gpio_set_func(struct wm8350 *wm8350, int gpio, int func)  in gpio_set_func()  argument
50 	switch (gpio) {  in gpio_set_func()
131 		return -EINVAL;  in gpio_set_func()
138 static int gpio_set_pull_up(struct wm8350 *wm8350, int gpio, int up)  in gpio_set_pull_up()  argument
143 				       1 << gpio);  in gpio_set_pull_up()
147 					 1 << gpio);  in gpio_set_pull_up()
150 static int gpio_set_pull_down(struct wm8350 *wm8350, int gpio, int down)  in gpio_set_pull_down()  argument
155 				       1 << gpio);  in gpio_set_pull_down()
159 					 1 << gpio);  in gpio_set_pull_down()
162 static int gpio_set_polarity(struct wm8350 *wm8350, int gpio, int pol)  in gpio_set_polarity()  argument
167 				       1 << gpio);  in gpio_set_polarity()
171 					 1 << gpio);  in gpio_set_polarity()
174 static int gpio_set_invert(struct wm8350 *wm8350, int gpio, int invert)  in gpio_set_invert()  argument
177 		return wm8350_set_bits(wm8350, WM8350_GPIO_INT_MODE, 1 << gpio);  in gpio_set_invert()
180 					 WM8350_GPIO_INT_MODE, 1 << gpio);  in gpio_set_invert()
183 int wm8350_gpio_config(struct wm8350 *wm8350, int gpio, int dir, int func,  in wm8350_gpio_config()  argument
188 		if (gpio_set_pull_up(wm8350, gpio, 0))  in wm8350_gpio_config()
190 		if (gpio_set_pull_down(wm8350, gpio, 0))  in wm8350_gpio_config()
193 		if (gpio_set_pull_down(wm8350, gpio, 0))  in wm8350_gpio_config()
195 		if (gpio_set_pull_up(wm8350, gpio, 1))  in wm8350_gpio_config()
198 		if (gpio_set_pull_up(wm8350, gpio, 0))  in wm8350_gpio_config()
200 		if (gpio_set_pull_down(wm8350, gpio, 1))  in wm8350_gpio_config()
204 	if (gpio_set_invert(wm8350, gpio, invert))  in wm8350_gpio_config()
206 	if (gpio_set_polarity(wm8350, gpio, pol))  in wm8350_gpio_config()
208 	if (wm8350_gpio_set_debounce(wm8350, gpio, debounce))  in wm8350_gpio_config()
210 	if (gpio_set_dir(wm8350, gpio, dir))  in wm8350_gpio_config()
212 	return gpio_set_func(wm8350, gpio, func);  in wm8350_gpio_config()
215 	return -EIO;  in wm8350_gpio_config()